21143767

素因数分解:

${\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{757}}^1$

素因数の和:858

約数の個数: 16

約数和(自身を含む): 23576832

約数和(自身を除く): 2433065

約数列:

[1, 17, 31, 53, 527, 757, 901, 1643, 12869, 23467, 27931, 40121, 398939, 682057, 1243751, 21143767]

約数ペア:

[(1, 21143767), (17, 1243751), (31, 682057), (53, 398939), (527, 40121), (757, 27931), (901, 23467), (1643, 12869)]